256719892

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{40801}}^1$

素因数の和:40840

約数の個数: 36

約数和(自身を含む): 531813268

約数和(自身を除く): 275093376

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 6292, 40801, 81602, 163204, 448811, 530413, 897622, 1060826, 1795244, 2121652, 4936921, 5834543, 9873842, 11669086, 19747684, 23338172, 64179973, 128359946, 256719892]

約数ペア:

[(1, 256719892), (2, 128359946), (4, 64179973), (11, 23338172), (13, 19747684), (22, 11669086), (26, 9873842), (44, 5834543), (52, 4936921), (121, 2121652), (143, 1795244), (242, 1060826), (286, 897622), (484, 530413), (572, 448811), (1573, 163204), (3146, 81602), (6292, 40801)]